Baseball

Oakland A’s third baseman Carney Lansford, who injured his left knee in a snowmobile accident on New Year’s Eve, underwent more than three hours’ surgery and probably won’t play for nine months, the team’s doctor said. Dr. Rick Bost, the A’s orthopedist, said exploratory arthroscopic surgery confirmed an earlier magnetic resonance imaging test showing damage to two major ligaments. The medial collateral ligament was repaired, and the anterior cruciate ligament was entirely reconstructed, Bost said.